Fix def files so that the implementation functions of eglrefimpl occur only in its implementation space.
EXPORTS
VGIInitialize @ 1 NONAME
VGICopyToTarget @ 2 NONAME
VGITerminate @ 3 NONAME
VGIResize @ 4 NONAME
VGIBindToImage @ 5 NONAME
VGIUnBindImage @ 6 NONAME
?VGISymbianCopyToBitmap@@YAHPAVCFbsBitmap@@0W4VGICopyToTargetHint@@@Z @ 7 NONAME
?VGISymbianInitialize@@YAHVTSize@@W4VGIColorSpace@@@Z @ 8 NONAME
?VGISymbianResize@@YAHVTSize@@@Z @ 9 NONAME
?VGISymbianTerminate@@YAXXZ @ 10 NONAME
?VGISymbianBindToImage@@YAHK@Z @ 11 NONAME
?VGISymbianUnBindImage@@YAHXZ @ 12 NONAME
?VGISymbianInitializeEx@@YAHVTSize@@W4VGIColorSpace@@HH@Z @ 13 NONAME
VGIInitializeEx @ 14 NONAME